We've all heard of the beer monster – well this is the monster that makes beer.
This time lapse video, filmed over six days, reveals that beer is a living, moving organism.
The liquid churns and froths as the sugars extracted from barley and hops are broken down by yeast added by the brewers.
At this stage, before the yeast is removed and the beer is filtered, it looks more like something from a horror movie than a drink enjoyed by millions around the world, yet the rise and fall of the fermenting liquid is also strangely mesmerising.
Video courtesy of Sierra Nevada